Installation (RX7)

Apply coat of engine oil to new "O" rings. Install "O" rings on primary injectors and air bleed sockets. See Fig 4 . Install mixing plates, ensuring tab on plate is indexed with notch in housing.
Install primary injectors onto fuel rail, ensuring electrical connectors are positioned as illustrated. See Fig 4 . Install primary fuel rail and injector assembly. Tighten fuel rail mounting bolts to specification. See TORQUE SPECIFICATIONS .
On non-turbo models, install extension manifold using new gasket. On all vehicles, apply coat of engine oil to new "O" rings. Install "O" rings on secondary injectors and air bleed sockets. See Fig 3 . Install secondary air bleed sockets.
Install secondary injectors onto fuel rail, ensuring injector electrical connectors are positioned as illustrated. See Fig 3 . Install secondary fuel rail and injector assembly. To install remaining components, reverse removal procedure using new dynamic chamber gasket.

Fig 1: Exploded View of Intake Air System (RX7 Non-Turbo)
Courtesy of MAZDA MOTORS CORP.

Fig 2: Exploded View of Intake Air System (RX7 Turbo)
Courtesy of MAZDA MOTORS CORP.

Fig 3: Installing Secondary Fuel Injectors on Fuel Rails (RX7)
Courtesy of MAZDA MOTORS CORP.

Fig 4: Installing Primary Fuel Injectors on Fuel Rails (RX7)
Courtesy of MAZDA MOTORS CORP.